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| NAS - Nonindigenous Aquatic Species |
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Common Name: silverjaw minnow
Synonyms and Other Names: Ericymba buccata
Taxonomy: available through 
Identification: Smith (1985); Page and Burr (1991); Etnier and Starnes (1993); Pflieger (1997); another name is Ericymba buccata.
Size: 9.8 cm.
Native Range: Disjunct distribution: Atlantic, lower Great Lakes, and Mississippi River drainages from New York, Pennsylvania, and Maryland to eastern Missouri; Gulf drainages from Apalachicola River, Georgia and Florida, to Mississippi River, Mississippi and Louisiana. Absent from Tennessee River drainage and Cumberland River drainage below Cumberland Falls (Lee et al. 1980 et seq.; Page and Burr 1991).
Nonindigenous Occurrences: This species is known from the upper Ocmulgee River drainage (Atlantic Slope) in Georgia (Bart et al. 1994). It has been collected from a tributary to Logan Creek, Reynolds County and the St. Francis drainage in Madison County, Missouri (Pflieger 1997). It was taken from the uppermost Clinch River and a tributary in Virginia in 1972 and the Rappahannock drainage (Jenkins and Burkhead 1994).
Means of Introduction: Unknown; possible bait bucket introductions. According to Bart et al. (1994), there are two plausible explanations for this species' present distribution within the Ocmulgee River system. The original entry may have been below Lake Jackson after 1971, with subsequent dispersal to other areas (and an independent introduction into Tussahaw Creek above Lake Jackson). Or, the entry could have occurred above Lake Jackson after the late 1970s, with subsequent dispersal to areas below the lake. The Clinch River, Virginia records probably represent one or more introductions form the Big Sandy (Jenkins and Burkhead 1994).
Status: Reported from Georgia and Virginia.
Impact of Introduction: Unknown.
Remarks: The absence of this species in earlier fish collections lend support to the idea that it was a recent introduction to the Ocmulgee River system of Georgia (Bart et al. 1994). In addition, Bart et al. (1994) considered it unlikely that such a distinctive species would have been overlooked by earlier investigators. This species may have entered the Susquehanna as a bait bucket release (Denoncourt et al. 1975b). Bean and Weed (1911) stated that this species was probably introduced into the upper portion of the Potomac River by the U.S. Bureau of Fisheries. According to Jenkins and Burkhead (1994), introduced status in the Potomac would indicate that this species also was introduced into the Rappahannock, for which the first record is 1962. However, Hocutt et al. (1986) listed it as native to the Rappahannock and Susquehanna drainages. In his recent work on Missouri fishes, Pflieger (1997) stated that isolated records of this species from the St. Francis drainage in Madison County and a tributary of Logan Creek in Reynolds County are fairly recent and possibly the result of bait bucket releases.
Pflieger, W. 1997. The Fishes of Missouri. Missouri Department of Environmental Conservation, Jefferson City, MO. 372 pp.
Other Resources:
FishBase Fact Sheet
Author: Leo Nico
Revision Date: 8/5/2004 Citation for this information:
Leo Nico. 2009. Notropis buccatus. USGS Nonindigenous Aquatic Species Database, Gainesville, FL.
<http://nas.er.usgs.gov/queries/FactSheet.asp?speciesID=588> Revision Date: 8/5/2004
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